Multiple-valued current mode adder implemented by transistor hav

Details Multiple-valued current mode adder implemented by transistor hav Multiple-valued current mode adder implemented by transistor hav

1989-02-22

1991-01-01

Shaw, Dale M.

Boots, shoes, and leggings

G06F 750

Patent

active

049823566

ABSTRACT:
A multiple-valued current-mode adder has a current-to-voltage converter for converting a total current into an input voltage level, the total current comprising current values respectively representative of the values of input integers a transistor with a negative transconductance due to a resonant tunneling phenomenon and a threshold value detecting circuit with an output current which changes from a first level to a second level. The transistor and the threshold value detecting circuit have respective input nodes supplied with the input voltage level for respectively producing output currents respectively representative of a sum and a carry in accordance with the input voltage level.

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